Home / 103,302.60-154,735.20-92,221.80

Finding the Fourth Proportional to 103,302.60, 154,735.20 and 92,221.80

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Solution

The fourth proportional to 103,302.60, 154,735.20 and 92,221.80 is: 138,137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,302.60 : 154,735.20 = 92,221.80 : x
  2. Step 2: Convert to fraction form
    103,302.60/154,735.20 = 92,221.80/x
  3. Step 3: Cross multiply
    103,302.60x = 154,735.20 × 92,221.80
  4. Step 4: Simplify right side
    103,302.60x = 14,269,958,667.36
  5. Step 5: Solve for x
    x = 14,269,958,667.36/103,302.60
  6. Step 6: Final answer
    x = 138,137.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.